Miter-joint for gutters.



M. H. WILLIAMS.

MITEB JOINT FOR GUTTERS.

APPLICATION FILED MAY 22. 1916.

1,2Q5,3@Q. Patented Nov. 21, 1916.

flarsfiall fi. Williams;

w gys snrrn snares rarnnr MARSHALL R. WILLIAMS, 0F TERRE I-IAUTE,INDIANA, ASSIGNOR TO BRADEN MANU- FACTURING COMPANY, A CORPORATION.

MISTER-JOINT FOR GUTTERS.

Application filed may 22, 1916.

To all whom it may concern:

Be it known that I, MARSHALL R. NIL- LIAMs, a citizen of the UnitedStates, residing at Terre Haute, in the county of Vigo and State ofIndiana, have invented cer tain new and useful Improvements inMiter-Joints for'Gutters, of which the following is a specification.

This invention relates to improvements in miter-joints for half roundgutters for the roofs of buildings, and the object is to provide alock-joint where the .mitered edges meet, and a stiffening roll at theouter edges of the gutter.

A further object is to provide an anglecap which will continue the tworolls around the corner, and which will be made out of one piece ofsheet metal and will be seamless on top and within the gutter tostrengthen the joint and to insure against leakage.

Another object of the invention is to so shape the ends of the rolls ofthe corner member of the gutter that the rolls of the sections nextthereto may be easily telescoped in them in the assembly of the gutteron the building.

I accomplish the above, and other objects which will hereinafter appear,by the means illustrated in the accompanying drawing, in which- Figure 1is a top plan view of a gutter miter-joint embodying my invention andshowing same assembled with adjacent sec; tions of a roof gutter. Fig. 2is an under side view of the corner section illustrated in Fig. 1. Fig.3 is an elevation of the same.

corner section showing the angle-cap only partially bent into place.Fig. 4 is a section on the line H of Figs. 1 and 2, on a larger scale,showing the manner of applying the angle-cap. Fig. 5 is a perspectiveview of theangle-cap. Fig. 6 is a section illustrating the constructionof the lock seam which unites the mitered edges of the gutter, and Fig.7 is a top plan view of the corner of the corner-section of the gutterwith the angle-cap removed.

Like characters of reference indicate like parts throughout the severalviews of the drawing.

For convenience in handling I prefer to make the trough members 8 and 9next to the miter-joint comparatively short. These members are made outof sheet metal,

Specification of Letters Patent.

Patented Nix-v. Serial No. 99,227.

appearance. The edges of the two sections where they come together aremiter-ed and are bent to form hooks which engage with each other to forma lock joint 11 in the manner shown in Fig. 6. The rolls are separatedby a gap at the 'outer corner, as shown in Fig. 7, which weakens thewhole structure and particularly exposes the adjacent ends of the rollsto mutilation and distortion. To remedy this I fill the broken anglebetween the ends of the rolls with a cap 12 which is stamped out of asingle piece of sheet metal, half round in cross section to fit closeupon and against the rolls 10. This cap is bent in a curve midway of itsends to form an angular piece which is long enough over all to lap Wellover the adjacent ends of the two rolls 10. The sides of the cap whichenter the trough are extended to form an apron 13, and this apron aswell as the half round portion of the cap are jointless by reason of thesheet metal being expanded over the larger arcs of the bend andcompressed in the shorter ones in the operation of stamping the cap.

The extensions forming the sides 14 of the cap, being those which gooutside of the gutter, remain straight until after the cap is placed onthe gutter, as shown in Fig. 4:, after which they are bent against theroll in the continuation of a cylinder as shown in dotted lines in Fig.4. The outside member 14 is split opposite the longitudinal bend of thecap from the edge of the member in to the half round portion, as shownat 15, forming two aprons which are adapted thereby to be more readilybent into contact with their respective rolls. Before the aprons orsides 14 are bent into contact with their rolls, the cap is soldered tothe gutter around the edges of the inner apron 13 and continuously ofthe ends of the cap for the extent of its half round portion as shownfrom a to b, in Fig. 4 in order to hold the cap in place. Then theoutside aprons 14 are bent and wrapped around their respective rollswhere they will remain without so]- dering, and the miter joint isreinforced and strengthened and the ends of the rolls are protected anda water tight cap is provided.

To enable the next sections to be assem bled readily'andproperly, withthe rolls of the adjacent sections'telescoping with those" of the cornermember, I prefer to finish the outer ends of the rolls in spiral shape18 which materially aids in guiding the other rolls into them. This isof consequence because the assembly is done on the building wheretheworkman is working at an elevation above the ground and frequently at adisadvantage.

Ihave shown my device as applied to a gutter at an outer corner of abuilding, but

it is equally applicable to gutters at an inbination with a half-roundgutter having a lock-seam uniting the mitered edges, and

having cylindrical rolls at the outer edges of the utter of a oneiece cabent half round in cross section to fit the top of the gutter rolls andalso bent to form a continuation oi? the two rollsysaid' cap having anapron continuous with said half round portion extending intothe gutterand 'soldered thereto, said cap also having a pair of outside apronswhich are clenched to respective rOllS on each side of themiter by beingbent under said rolls. V

2. A pair of short half round gutter members having adjacent miteredends united by a lock-joint, each member having an outside edge-rollterminating with a'gap between them at the joint and having spiral outerends, in combination'with a one piece cap overlapping both rolls andbent'to form a. continuation thereof, said cap be ng formed half-roundin cross section with eX- tended sides forming aprons of which' an innerone is soldered to the inner wall of the gutter and outer ones of whichare bent to conform to the contour of their respective 7 rolls.

In witness whereof I have'hereunto set my hand and seal at Terre Haute,Indiana,

nine hundred and sixteen.

MARSHALL WILLIAMS! IL. SQ

this 12th dav of'May, A. D. one thousandf icopies of this patent may beobtained for five cents each, y addressing the Commi sioner of fatents,

i Washington, D. G. 7

